Tire tread



FIG. 1 is a top plan view of a tire tread showing our new design which has been broken away in the middle to indicate indeterminate length, it being understood that the head pattern is repeated uniformly throughout the length of the tread;

FIG. 2 is a side elevational view thereof; and

FIG. 3 is an end elevational view thereof looking in the direction of the arrows on line 3--3 of FIG. 1. 

The ornamental design for a tire tread, as shown and described. 